From what I've read about the EDL (in the respected anti-racist magazine Searchlight, for instance), whilst not all of them are racists, some of them are. And the police are on record as saying "Really, there was no intent to protest. I think they knew that the community was very much against them coming to the city, which...potentially would generate violence". Whilst it is a free country, I don't believe this should extend to provoking violence.
I can't get the link to work either, but I wouldn't want my club to be associated with it...